A cardboard box rests on the floor of an elevator. The box has a mass m = 3.75 kg and the elevator has an upward acceleration of a
Part a. Select the Free Body Diagram for the system
Part b. Write an expression for the sum of the forces actinv on the box in the y direcion, given that up is the positive y direction. Your answer should be in terms of FN, m, g.
Part c. Write an expression for the normal force FN, that the block experiences in terms of the elevator's accelaration, the block's mass and the accelaration of gravity
Part d. If the elevator's accelaration has a magnitude of g in the downward direction, what would the normal force FN1 be in Newtons? (Numerical value)
Part e. If the elevator's accelaration had a magnitude of g in the upward direction, what would the normal force FN2 ve in Newtons? (Numerical value)
Answer:
The answer to that would be 8/9
Answer: Q and W are similar but not congruent
Step-by-step explanation:
From the given graph, The length of rectangle Q= 5 units
and the width of rectangle Q=2 units
The length of rectangle S= 5 units
and the width of rectangle S=2 units
Since the dimensions of rectangle Q is equals to the corresponding dimensions of the rectangle S and since all the angles of rectangle are right angles.
therefore, Q and S are similar and congruent as they have the same shape and the same size.
But The length of rectangle W= 10 units = 2 times length of Q
and the width of rectangle W=4 units= 2 times width of Q
Thus the dimensions of W is proportional to dimensions of Q.
Thus, Q and W are similar but not congruent.
Answer:
64 cupcakes
Step-by-step explanation:
Tray 1 = 2 cupcakes
Tray 2 = 4 cupcakes
Tray 3 = 8 cupcakes
Tray 4 = 16 cupcakes
Tray 5 = 32 cupcakes
Tray 6 = ?
This is a geometric progression
First term, a = 2
Common ratio, r = 4/2
= 2
6th term = ar^n-1
= 2 × 2^6-1
= 2 × 2^5
= 2 × 32
= 64
The 6th tray will have 64 cupcakes
Answer:
good luck
Step-by-step explanation:
